…it must be pointed out that just as the human body shows a common anatomy over and above all racial differences, so, too, the psyche possesses a common substratum transcending all differences in culture and consciousness. ~Carl Jung, The Secret of the Golden Flower, Page 84.

The psyche is a self-regulating system that maintains its equilibrium just as the body does. Every process that goes too far immediately and inevitably calls forth compensations, and without these there would be neither a normal metabolism nor a normal psyche. ~Carl Jung, CW 16, Par. 330.